Base current compensation for a BJT current mirror
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Dec 2, 2016
filing date -
Dec 2, 2016
priority date (Note) -
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Abstract
A current mirror circuit includes an input current leg and an output current leg. The input current leg includes: a first bipolar junction transistor (BJT) having a collector terminal configured to receive an input current sourced at a current node and a first metal oxide semiconductor field effect transistor (MOSFET) having a gate terminal coupled to the current node and a source terminal coupled to a base terminal of the first BJT. The output current leg includes: a second BJT having a collector terminal configured to supply an output current and a second MOSFET having a gate terminal coupled to the current node and a source terminal coupled to a base terminal of the second BJT.
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